Machine for gauging roundness and taper of bolls



10 Sheets- Sheet 1 fave do '4 dzz fiziomzey May 25 ,1926.

- J. KELLER MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS May 25 1926. 1,586,155

J. KELLER MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS Filed Aug 15, 1933 10 Sheets-Sheet 2 May 25 1926.

.' J. KELLER MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS Filed August 15, 1o sheets-shet' 5 J. KELLER MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS Filed August 15, 1923 1Q Sheets-Sheet L 74%; p7 A" if 1 ma 99 m7 f2 9 A 73/ I3 2 verazfor:

= J- KELLER MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS Filed AuguFt 15, 1923 10 Sheets-Shb 5 A fliiohmej.

May 25 1926. 1,586,155

I J. KELLER MACHINE FOR GAUGING.ROUNDNESS AND TAPER OF ROLLS Filed August 15, 1923 10 Sheets-Sheet 6 J. KELLER MACHINE FOR GAUGING ROUNDNESS AN D TAPER OF ROLLS Filed August 15, 1923 10 Sheets-Sheet v [m/enior May 25 1925.

J. KELLER MACHINE FOR GAUGI-NG ROUNDNESS AND TAPER OF ROLLS Filed August 1923 10 Sheets-Sheet 8 May 25 192%. t

J. KELLER I MACHINE FOR GAUGING ROUNDNESS AND "PAPER OF ROLLS (San-1 Re 1.05456 Laic/z Rollin 511150 Pasz'izo Eng 0150. /ai is fig 12 A Filed August 15, 19123 10 sheets Sheet 9 may 25 9 1%26. 1 5855135 ,3. KELLE R MACHINE FOR GAUGING ROUNDNESS AND TAPER OF ROLLS Filed August 15, 1923 10 Sheets-Sheet 1O warren JEREMIAH KELLER, OF CANTON, OHIO. ASEIGNOB T 'COMIEANY, 0F CAZJ'I'CN, OHIO, A COBPOHATIQN Gk MACHINE FOB GAUGING RUUI Q'DNESS AND TAIPEE', 0F?

Application filed August 15, 19523.

My invention clates to machinesv for gauging roundnests and taper of rolls, and has for its principal objecta device hy which rolls.- particularly conical rolls for v roller hearings. may be automatically gauged for roundness and taper and sorted accordingto whether they are of the proper ronndness'and taper Or'liot. Tl'ie invention consists principally in the taper lu garging mechanism and roundness gauging mechanism hereinafter described and claimed and in the machine and in the parts. combinations and arrangements of parts hereinafter described and claimed.

My machine comprises inechanisn'i for receiving rolls fed thereto and. feeding said rolls to the gauging mechanism. mechanism for automatically gauging such rolls for 1 taper and roundness, and mechanism for a sorting gauged rolls. These several mechanisms are driven from a main shaft, which is provided with suitable timing apparatus for co-ordinating the various movements and functions of the different parts.

In the accompanying drawings, wherein like symbols refer to like parts wherever they occur Fig.1 is a front elevation of a machine embodying my invention.

Fig. 2 is an elevation of the left side of said machine;

Fig. 3 is a rear cle 'ation of said machine;

Fig. -ttis a detail view of the hinged grate whereby defective rolls are ejected from the machine;

Fig. 5 is a vertical sectional view on the lines of Figs. 6 and '17, that is, vertical section in Vertical planes passii'zg through the main shaft, the view of the portion between the main shaft being on a plane parallel with the front of the machine, and the portion to the right of the main shaft being in the'plane of the main and intermediate shafts, as indicated in said Figs. 6 and 17;

Fig. 6 is a horizontalsectional View on the line 6-.6 of Fig. I; the plane of the.

section extending through the housing just below the top thereof, so that most of the mechanism appears in plan;

Fig. 7 IS a diagrammatic View of the electric system of the gauging devices:

Fig. 8 is a horizontal section on the line e of F 1, but showing a great portion ofthe sorting mechanism in plan 5 w) LLJA taper gauging mechanism 1. oi Fig. (3:

A t it is a vertical section the roundncss gnu" 1g tevice;

l igr. 12 is a sectional view of the lime -l2-12 of Fig. 11;

big. 13 is a plane view on the illitg li----i 3 of Fig. 1;

Figs. 11" and 15 are vie? with Fig. 9, showing the pin and in different positions.

it; is a timing diagram r g. 1? is a plan view of the gearing for obtaining the intermittent rotation of the rotary disk that holds the rolls 'heine' gauged and of the rotary' dish hr whiclf ain ed rolls are distributed.

18 is a vertical section showinizthe e ect1n mechanism for defective rol i Fig. 19 is a detail View of the spi holding rolls in place thev are fe the positioning disk. u

Referring to the accompanying drawing. the main shaft 11 of my machine is E'Qltlcally mounted in a suitable framework 12, which also constitutes a housing for the gauging, mechanism hereinafter described, this framework being itself preferably sun ported on a suitable pedestal 13. h

Mounted on the upper end of the main shaft 11, is a Worm gear le which withv a worm 15 and. is drivenbv able source of power. V

The rolls it)" to he cperat i open a Led one at a time as through reed tube ii toa positioning disk 18 that is fixed on a hollow shaft "19. the main shaft 11 to be driven intermittcntlv thereby as follows: Mounted on or formed integral with the end of said hollow shaft 19 is a pinion 20 which meshes with a spur This 19 is connected with off ihc. pin wine] is n rib 35 of circular cm 55 li ii has n hovel pinion 27 mounted on the inner end. Thereof, the hub of this hevelpiniou 2! iheroou, said disk :38 living of suhstuniinlly the Still! diameter as the positioning dish 1% cinhcioro mentioned and lining spncorl ii ihcrcfrom. This disk 28 is herein-- ferred to as the rolling disk. Tho

' is provided with a pair of dia- )PPUSCLl. slots 28 and the. disk ml Hi said slots on the face from positioning disk as shown at 28".

maid. hovel pinion 27 operotively cunnected to the source of power as hereinafter V )(Eli. and transmits motion boon to the rolling d""li 28 and to the positioning disk 15:, iho iliillIllllBdlfliG connoctions consonant-- l reducing device whereby the sh rotates zit considornhly radial slots preferably slots, disposed ninciby degrees apart. 1 Fixed to the main choir i1. is a pin wheel 33, ihai; is a disk that provided, with a pin Ellilm; projects downwardly from the lower face of the pin wheel 33 and is of proper size to onion and cooperate with the radial slots of the star wheel 31. Projecting from the lower porcion return-extending for about three-imirths of a. circle, as shown in F1 13. Tho periphery of i-he shir Wheel is formed with lour concove curves 36 located hc'm eon the respective slots and formed with snbsianmlly the some curvature as the rib oi the pin whecl. 'lho pin 0% or the nn wheel 35 is c 18d 0;;-

positeiho middle. point ol the gap between i, ihe. ends of the circular rio this arrangement, each rei'oluiion of the pin wheel 32%, which is in conimuous motion and ninkos one ronolni'ion i'or cnch turn of the main shaft 1.1, the pin 34 to enter one of the slots 32 of the star Wheel 31 and move said star Wheel through onefourth of a revolution, and leaves the next slot in position to receive said pin 34 on tho next revoln bion of said pin Wheel; the star Wheel 31 being meanwhile lochcd against. rotation by the circumference of therih fitting in the adjacent concavity '36 of ihe slur wheel 31. the star wheel becoming zinloclgmi when the end of the Eli) reaches the mid-90nd oi odd concavity, which zoom;- is

P1 A l ino mznn shaft-i1 and n .1 slots 21 providcd in the, gori positioning; disk 18, who

in this position by the rotation of the posi- 1 rmirhed simultaneously with We entry of the pin 25% into rho slot; 325 of lhe sinr \i'llQ-Li. [is the main Elli-iii; 11 roiui'os :it reluiivcly slow speed, it is desirable to iii/min a quicker movementof the intermcdizii'o shaft 30.; and To for this purpono, ii; pi aide to mount the sinr wheel 31 loosely 0 tin: intermediate slmil'riO and provide it wiih a gear Wheel 3'? which meshes Willi a oinion 38 of smaller diameter that is fixed on oho huh of a second 11' 2-15} which in turn is l )'JFij-f mourned on n meshes with a pinion 46 which iSliKBo. on said inlcr mediate shaft 30. in t s wo q, the mic/1 mediate shaft 31) is cons speed than the mnin is actuated As stated. above, the i. re fed one at a time lYiLO positioning dish or roll carrier 18 limb is ino'nnlicd in vertical plane on or horizontal axis; and said disk has an intermittent roloriini. cwclrmoveinent znnoiuriting to ninety degreeo. positioning disk 18 is located between i-he rolling disk 28 which. is mounted concentric with the positioning disk 18, on the one side and the hereinafter described gauging devices and runways on the other Tho outer portion of the f disk 28 next to the no hevelcd off to con? e tape oi the rolls 16 be gauged; and tho runway 42 opposite said, beveled portion 10 of the rolling dish adopted to cooperate thcrowich; A roll ho be gauged entor's the redial noclret 4:1 in the periphery oi? the said pocket is in its upporinosiiposition, being held in place by a spring 43 secured to the housing and extending along the upper edge of the rolling disk, its end portion extending across the opening in said dish and by the runway 12 and by the Walls of said. pockct all, and 1 thereby the roll CzllllGii forward in! said positioning disk 18. The roll kept from moving radially outward by means of a guard pinto 44 that overlaps the: space bctween the rolling disk 1.8 and. the runway 315 42 and extends through the greater portion of nsemi-circle, that is, from close to the pocket 41 in its uppermost position to (lose to the pocket 41 in its lowermost position.

The taper gauging mechanism, that is. Ml the mechanism whereby the taper of the roll is gauged, is located 90 degrees from the point at which the roll 16 is received into the positioning disk 18, the roll being carried tioning disk. In its taper gauging position, one side of the roll is pressed against the rolling disk 28. and the outer end of the roll bears against the guard plate 44.. Eire op posite side of the roll is in contact with one end of a floating lever 45 whose other end is provided with electric contactpoints 46 in position to cooperate with fixed contact points 47 ofelectric circuits herein- 6 after described. The floating lever 1-5 rests on a portion d8 of the housing. The contact points are secured to a le -shaped member 49 that straddles the end of the lever and is mounted on an insulated block 50 on the framework. The parts are so designed that when the roll is of proper taper, the contact points 45 of the lever lie midway between the fixed contact points 47 of the electric circuits; but if the roll has too sleep a taper, said lever 45 swings into contact with one I of the'fixed contact )oints 47 to'close the circuit thereof, and if the roll has too little taper, said lever swings into contact with the other ii. l contact point -17- to close the circuit thereof.

As stated above, the lever is a floating v lever; by rich is meant that the lever does not have a, fixed fulcrum but is free to change its position conforinably of the roll 16 being gauged; pose, the end of the lever 4.5 is forked and beveled, so,that when both forks 51 thereof bear against the roll, the outer end of the lever lies midway between the fixed Contact points 47. The bottom of the yoke or fork is formed into aknife edge 52 which bears against a shoe 53 which is mounted adjacent to the race-way and which extends in acurve substantially parallel with the periphery of For this pan the positioning disk 18. Attached to this shoe 53 is one end of a tension spring 54 whose other end is attached to the lever some distance back. of the knife edge 52 thereof and tends to pull said lever .against said shoe. By this arrangement, the forks 51 of the lever extend into the path of the roll 16 to be gauged and are moved outwardly by said roll against the force of said spring 54; but at. the same time, the two forks 51 of the lever, which constitute the gauging points thereof, are kept in contact with the roll near theends thereofand lllQHB by control the position ofthe outer end of said'lever 45; that is tosay, if the roll to of proper taper, the lever 4.5 is not swu; g her to the right or to the left, but if the rollis ofi'-tapc1, said lever is swung either to 1 ight or to the left as the case may be. l ery little variation from the correct isrequired to cause the 'le'ver 45 to .ontact with one or the other of the I contact points 17 mid -thereby close the circuit thereof. lly adjusting the fixed contact points 47 it is. possible to change the amount by whit-ha roll must beolf taper to close the circuit. If the fixed contact points arevery near to the contact points 46 of the lever, a roll that is very slightly elf taper will close the circuit, whereas if the contact points 4? are spaced farther fail to the taper away from the contact points 46 of the tion explained hereinafter.

As stated above, the taper gauging is effected in the interval following the first movement of ninety degrees from the point at which the roll 16 enters the uppermost pocket 41 of the positioning disk 18. The next movement of said positioning disk carries said pocket and the roll 16 therein. through an arc of ninety degrees to the lowermost position. It is during this name ment that the roll is gauged for roundness, by mechanism about to be explained. The curved shoe 53 mentioned in connection with the taper gauging device, is fixed to or integral with a block 55 that is mounted at the end of a polygonal plunger 56 which is mounted with its longitudinal axis at right angles to the plane of the positi ning disk 18 so as to be bodily movable trans versely .of the plane of said disk. ably, the plunger tits in the bore of a housing 57 provided therefor in the framework so as to be freely movable endwisc therein. The plunger is provided with recesses 58 in each of which is a spring 59 that bears against a plate 60 that closes the end of the bore in which the plunger fits. The plate'is secured to the framework by screws. Thus the plunger is always forced toward the positioning disk by the pressure of the springs. A stop screw is provided for the plunger.

The back portion of the plunger 50 is hollowed out to receive a friction element that has frictional engagement with the inner wall of said bore but is capable of sliding endwisc of said bore when the pressure is suflicient to overcome the frictional engagement. This friction element in the form of a central disk 31 with cylindrical extensions 62 on'both sides, the extensions being slitted inwardly from their ends to form resilient arms for yieldably engaging the inner surface of the plunger,

Attached to the central disk (31 is a rod 63 which extends through therefor in the plate that constitutes the end wall of the }')lllflf {(3l chamber, and terminates in a yoke (H or oped link. This yoke portion has a horizontal cross piu (55 \which extends through a vertically elongated slot 66 in the upper end of a verti- Cally disposed link (37. Also extending through the upper portion of said slot (Hi is a second horizontal pin 68, which is fixed to a stationary bracket 69 of part of the framework. The two pinsand 68 are adapted to make contact with both sides ofthe slot 66,'the pin.68 constituting the 1 Prefersit) 73 is in the lower portion pivot about which the link 67 swings when actuated by the pin 65. The operation of the mechanism is as follows:

Vihen the positioning" disk 18 moves the roll it? forward, the roll is pressed against the rolling disc: 28 lay the shoe 53 on the end of the plungerhti, which in turn. is pressed endwise by the springs At the .emo time, the rolling disk 28 against which the roll 16 is thus pressed, is traveling at higher speed than the positioning disk, asher ubetore described and the shoe 53 remains stationary so for as the rotary movement is concerned. In consequence of these conditions, the roll is caused to rotate on its own axis, that is to say, it rolls on the surface of the rolling disk 28 and also on t r plunger mounted shoe 53'that is pressed against it. During this rolling movement the entire circun'lterence of the roll is presented successively to said movable shoe 53; and it the diameter of the roll varies at all, such variation causes the plunger to more inwardly or outwardly, es the case may be, transversely of the rolling disk; and this movement of the plunger transmitted through the friction elementand the rod 63 attached thereto to the vertical link 67 near whose fulcrum said rod 63 is pivoteliy attached. The lower end of the link 67 carries electric contact points 70 in position to cooperate with fixed contact points 71 of electric circuits hereinst'ter described. Said fixed contact points are mounted on a suitable member 71 socured to the frame of the machine.

As stated above, the friction element has frictional engagement with the plunger 56 to reciprocate therewith and is also adopted to slide endwise in said plunger when submitted to sullicientpressurc to overcome its friction. The principal object of this feature is to adapt the device automatically to the gauging of rolls of different sizes. For this purpose the lower end of the link 67 is slotted or formed into 21. yoke 72 into which extends a pin 72% that is mounted in the end of an arm 74 that is mounted on a rock shaft 1 5. The lower portion of the slot 72 is narrow enough to hug the pin 73 on both sides thereof but the upper portion'ot the slot is considerably Wider than the pin, so as to permit the link 67 to swing for enough to make contact with the electrical terminals 71 when the pin is moved to such Wider portion of the slot. -When the pin of the slot 72, it locks the lower end of the link 67 against movement; and as the upper end of the link is locked ing pin 68, the pressure of the plunger 56 transmitted through the friction element and connectin rod 63 g is ineffective to move said ii i 67; so that when the link against movement by its suppor'tmesses is locked, the friction element is held against movement by said link and the rod connected to said element, and the plunger 56 slides over said. friction. element. In operation, the ports are i organized that the. link is norrizn J against move ment and is releeed cry in position to he gauged for utter the p. gcr has seem to the roll Ky moving along element. The rock shoi't Y5 by which the pin 73 supported is pivotull y inounte 111 a member to that t: oe 11W I t frame. e E5 is secured a.

iodz ted i sell the friction engifged by s 10 of the machine. Said shaft is provided with it gear 8? ti'iat meshes with gent ".3

on the hot-torn of the main drive shaft ll of the machine. "llhus the locking pin is periodically raised to unlock the lever, such unlocking es shove stated, occurring when a roll is in position to be gauged by the roundness gauging mechanism and after the plunger has accommodated itself to the roll. Secured to the rock shaft is aspring 84. the other end of which is secured to the frame in any s itable manner. The force of this spring holds the parts in such position that the roller 2'8 is held against the disk 79 and returns the parts to locked position. as soon as the roller clears the cum portion of the disk.

The continued rotation ing disk 18 alter the roll ried past the roundness roll to a point 180 from where it was dclivered into the positioning disk. The positioning disk stops with the roll in substantially vertical position in the pocket; whence it drops onto the hereinafter described distributing or asserting mechanism, the guard plate terminating short of the lowermost position of the positioning disk, so as to permit the roll to drop therefrom. The distributing mechanism coinprises u rotary disk or carrier disposed horizontally rotate on a vertical axis, said disk bei'iig hereinafter called distributing disk and other hereinafter described mechanism. The marginal portion of the disk is cut away (85) to conform to the edge of the positioning disk 18. The distributing disk is mounted :oncentric with the main shaft 11 and is driven therefrom by a suitable train of speed. multiplying mechanism that operates intermittently. The mechanism illustrated. is us follows:

The distributing disk 85 is secured to the l we end of a ho l iv shaft 86 that sure of the position- 16 has been ourgauge brings the lit rounds the main drive shaft 11. Keyed to the main shaft- 11 is a gear 8? that meshes with a gear 58 that is fixed to the hub oil a pin wheel 89. The pin wheel 8%) is rotatable on a suitable stud 90-that is secured to the frame and is parallel with the main drive shaft 11. pin 91 depending therefrom that is adapted to enter one of the four equidistant radially. disposed slots 92 of star wheel 93 that is tilted to the hollow shaft 86, to rotate the The star wheel 93 is provided with curved edges 94* between the slots 92 and the pin wheel v89 is provided with one of said curved edges 94: to prevent rotation of the star wheel except when the pin 91 enters one of the slots 92.

The timing devices are so correlated that the distributing disk 85 moves during the iuierlnissions in the movement of the positioning disk 18. The distributing disk as is provided with tour equi-distant recesses or notches 96 in its periphery, as shown in Fig. 13. It is also provided with four equidistant pins 97 at the forward ends of the respective recesses. each pin functioning as a rigid jaw for holding the roll 16 in cooperation with a movable jaw in the form of a pin 98 extending upwardly through said p'driphcral slot 96 and mounted on the end of a pawl 99 which in turn is pivotally mounted on the underside of said distributiug, disk and is provided with a spring 100 which normally presses it toward the corresponding fixed jaw. The pivot pin for said pawl is indicated in Fig. 13 by the reference numeral 101 and the back-stop therefor is indicated by the reference numeral 102.

Also pivotally mounted on the underside of said distributingdisk are four spring pressed pawls 103 in the shapeof bell-crank levers. the pivot pin of said spring pressed pawl being indicated in Fig. 13b; the reference numeral 101- and the spring by the refi-rcni-e numeral 105. The innerends of said pawls lie in the path of a cam 106 that is fixed to the frame, said cam cornprising a relatively long circular peripheral portion and a' relative y short circular peripheral portion of greater radius, the two circular arcs being connected by inclined shoulders. he outer end of each bell crank'pawl 103 has a button or seat 107 on its upper sur i; c: and in the normal position of said gz-uwl 103. the button 107 thereof is located in the peripheral recess of the distributing disk 85 dose to the corresponding pin 97 or fixed jaw. and between said fixed jaw and the movable jaw 98. Likewise. the pawl l03 is positioned so that the button 107-.is immediately below the lowermost portion ot'the roll pocket of the positioning disk so to receive the roll directly therefrom by gravity. The cam 105 cooperates with The pin wheel 89 has a the roll 10 past the roundness gauge to the point where it drops on to the spring pressed pawl 103 or" the distributing disk, the hereled edge portion of one of the slots 28 of the rolling disk engages the movable pin 98 and swings it to one side where it is held by the hat surface of the rolling disk until the roll pocket 41 01 the positioning disk has reached its lowermost position and the roll 16 has dropped on to the button 107. At this point one notch 28? of the rolling disk is in alinernent with the pocket 41 of the positioning disk; and the movable pin 08 is permitted to swing into engagement with the roll 16. The distributing disk 85 then rotates carrying the roll out of the notches of the positioning disk, the guard pins only passing through the rolling disk and the positioning disk.

As illustrated in Fig. 5 the machine is provided with a guideway in the form of a circular are extending through about threefourths of a circle, i. e.', from the point where rolls are delivered to the distributing disk from the positioning disk to the point where perfect rolls leave the distributing disk.

This guideway comprises two walls 108 spaced apart but concentric with the main shaft and in position to receive the roll and the jaws by which it is supported. The guideway may be provided with a central sleeve portion 109 that is sleeved on the hel-. low shaft 86 onthe main shaft and with a portion 110 that engages the intermediate shaft 30 so that the guideway is held against rotation.

By the foregoing arrangement, a roll delivered'by gravity onto the button 107 of one of the gate arms 103 of the-distributing disk 85 is loosely held by the movable jaw 98 between the fixed pin 97 and is at the same time supported laterally by the walls 108 of the guideway. When the distributing disk rotates. the movable gate arm 103 and the roll is permitted to drop into a. suitable receptacle.

After the rolls-rae gauged, they are sorted into three lots, namely: 1. Those that are correct as to taper. and roundness. 2. Those that are correct as to taper but are'out of round. 3. Those that are both out-of-round and oil-taper or simply oil-taper. Those rolls that are correct as to both taper and roundncss are delivered directly from the distributing disk into a suitable chute or container.. For this purpose the spring pressed pawl 103 is provided with a toe 111 that engages the cam 106 after the distributing disk has passed the chute where deiii) is moved to one side as hereinafter described of the spring 122 causes it to ride down the inclined shoulder 132t0 engage the small diameter portion of said cam and the contact point 123 on the said spring engages the fixed contact point 124 thus closing the circuit 'at. this point. The cam is timed to close the circuit through the automatic switch whenever a roll is being gauged for taper.

The automatic switch of the roundness gauging circuit likewise comprises a spring member 133 that is fined to the support 121 that is electrically connected with the trip magnet 118 and has a contact point 134 thereon that is adapted to engage a fixed contact point 135 that is electrically connected with the magnet 116 of the roundness gauging circuit. The spring 133 is normally held away from the fixed contact point 135 by a roller 136 on the end of a bell crank 'arm 137 that has a roller 138 at the other end that rides on the cam 131, said bell crank arm having a suitable hub portion 139. Projecting from said hub portion 139 is an arm 140 that is adapted to be engaged by the hereinafter described latch mechanism. The cam is timed to close the circuit through the automatic switch whenever a roll is being gauged for roundness, means being provided, as hereinafter described, for preventing the closing of the circuit when a roll is found to be ofi' taper.

After the spring-pressed pawl 103 on the distributing disk 85 has received a roll 16 from the positionin disk 18, the distributthrough an angle of- .ing disk is rotate about ninety degrees, at which oint the spring-pressed pawl 103 bearing t e roll is above the chute intowhich defective rolls are ejected. Mounted on the shaft'80 on which the cam7 9 that operates the locking mechanism forthe link 67 of the roundness gauging device is mounted, is a cam disk 141 that bears against a roller 142 on the end of a bell crank lever 143 that is mounted on a suitable pin 144 that is secured to the framework. Secured to the upper end of the bell-crank lever 143 so as to swivel thereon in a vertical plane is a second bellcrank lever 145 hereinafter called trip lever A suitable spring-146 is mounted on the pivot pin 147 of the trip lever to bear. against the trip lever, so that the trip lever stays in a given position relative to the bell- ,crank lever 143 until sufficient force is applied to it to overcome its frictional engagement therewith. When the cam portion of the cam disk 141 presses against the roller 142 on the bell-crank lever 143 it swings said lever and brings the downwardly depending arm 148 of the trip lever 145 into proximity with the trip magnet 118. As above described, this trip magnet is energized both by ofl=taper rolls and by outof round rolls. When the magnet 118 is energized, the downwardly depending arm 14.5 of the trip lever 145 is attracted thereto, and thus the other end of the trip lever is swung upwardly so thatit is in position to engage a .lug 149 on the underside of the spring-pressed pawl 103 on which the roll 16 rests. By reason of the frictional en gagement ofthe trip lever 148 with the hell crank lever, the trip lever is retained in its tripping position until the roll that has been gauged is delivered to the distributing-disk and brought into position for the pawlto be tripped. The end of the trip lever extends beyond the point of delivery for de fcctive rolls so as to trip the pawl 103 as it approaches the delivery point.

After the pawl 103 has been tripped and the roll ejected into the chute for defective rolls, the continued rotation of the distributing disk and of the cam 141 brings the roller 142 to the recessed portion of the cam disk 141. A suitable spring 150 secured to the bell-crank lever 143 and to the framework of the machine causes the roller 142 to ride into the recessed portion of the cam 141 and swings the bell-crank lever away from tripping position. At the same time a projecting portion 151 of the, trip lever strikes a cooperating cam surface 152 on the housing and swings the trip lever out of tripping position. A pin 153 on the trip lever engages a pin 154 that projects from the bell-crank lever to prevent the trip lever from being swung too far.

The her'einbefore mentioned latching mechanism for holding the out-of-round augingcircuit open when a roll 16 has been Found to be oil-taper is as follows: Mounted on a suitable member 155 in the framework is a bell-crank lever 156 hereinafter called 5 latch lever, that has one arm 151 formed into an armature for the electro-magnet er the taper gauging circuit. After t his electromagnet 115 is energized b reason of an off-taper roll being gaugec, the armature portion 157 of -said latch lever 156 is attracted. The other end of the latch lever has a hooked portion 158 at the end that is swung into ing arm of t e crank arm 137 that operates the automatic switch of the roundness gauging circuit, thus preventing the roller 136 from following the depression in the cam 131 and holding the circuit open at the automatic switch. Thus, even ift-he roll is out-ofrcund, as well as oil-taper, the gate 112 will remain in position to deliver the roll into the off-taper receptacle. A lug 159 mounted on the cam 131 engages a projection 160 on the arm of the latch lever 156 to reset the latch lever.

The operation of the machine has been osition to engage the project- P I description of the constrir it may be summarized as follows:

i: tion theieof bu The feed tube is kept filled with rolls which are automatically ted one at atime, to the positioning disk18. A: roll is fed into a pockets]. of the positioning disk, where it is held by the runway 42 on the housing, the Walls of the pocket ll of the position ing disk 18 and the spring 43 that is disposed alongside the rolling disk-28, The positioningdisk 18 and rolling disk 28 are then rotated, the rolling disk. rotating twice as 'fast as the positioning disk, sothat the slots of the two disks do not remain in alinement, and the roll is held between the raceway portion otthe rollin disk and the runway on the housing. lhepositioning disk 18 is rotated ninety degrees, thus bringing the roll into engagement withthe taper ejected. The circuit is then closed through the automatic switch 119 of the taper gauging system by the cam 131 moving the crank ,arm 127. The bell crank lever 1 .43 is moved by its cam 141 so that it v tapcr the armature 1480f the trip lever 145 is attracted by the energized trip magnet 118 and the trip lever is moved into tripping 7 position; one arm 114 of the rock shaft'113 is attracted by energized oil taper magnet 115 so that-the hinged gate 112 is moved into oiitaper position, and the means for closing the circuit through the automatic switch 120 of th'e roundness system is latched, so

as topreventthe gate 112 from being moved into out-of-rou11d position.

If the. roll is of proper taper, no contact is made-between the floating lever contact 46 and the fixed contact 4'7 and the electric circuit'rcn'iains open at the taper gauging device; and althoughthe'h'ell crank lever 143 is moved by its cam 141, the trip lever 145 is not set in tripping position because the oil taper magnet 118 not'encrgized' The positioning disk 18-.is then rotated ninety degrees tocarry the roll .11 past-the disk provulcd with pawls adapted to receiverounclness gauging deyice, the distributing disk remaining stationary. I As the' roll passes the roundness gauging device, the electric circuit is closed through the automatic switch 120 of the roundness system (if the roll is of the proper taper). The link 67 is locked against movement long enough for the plunger 56 to accommodate itself to the rollll and then the shaft is rocked to more the pin 73 to the Wide part of the slot 72, thus releasing the link.

L111 the roll .is out-of-round, it actuates' the plunger 56, .vhiclractuatesthe rod 63 and link 67 at the end of the link and causes the electric circuit of the roundness gauging .e roll is oil" numerous advantages.

system to be closed. The gate 112 is moved into out-of-round position by reason of an arm 114 of the rock shaft, 113 being attracted by the energized outoi-round electro-magnet 116. If the roll is off-taper, the circuit is not closed at the automatic switch 120 by reason of the latchin means hercinbcore described) and therefore the roundness gauging system is inoperative. Thus at the end of the rotation of the positionin disk, the ejecting mechanism is set so that t 0 roll will be ejected into the proper receptacle from the distributin disk,

After the positionin disk 18 has carried the roll past the roun ness gauging device, it stops w-ith the pocket 41 extending down- Wvardly, 180 degrees away from the osition that it was in" when it received t e roll. The roll drops from the positionin disk onto a pawl 103 of the distributing disk 85.-

The positioning disk 18 remains station ary while the distributing disk rotates.

lVhe'n the distributing disk has rotated 90 degrees, the roll holding pawl 103 is tripped by the lever l45, if the rollis offta'pcr or ol1t-of-round or both. It the'roll 11 is round and of the proper taper, it is carried past the point for ejecting-defective rolls and is ejected when the toe 111 of the roll holding pawl 103 contacts with the cam 106.

A complete cycle of operations is shown in Fig. 16 beginning with a roll in. engagement with the otf-taper gauging device and endingat the ejected.

The herein described gaugingmachine has It automatically gauges and asserts roiis for roundness and taper. The gauging devices are accurate and accommodate themselves to rollers of various sizes.

Obviously, numerous changes may be point Where a defective roll is made Without departing from the invention and I do not Wish to be limited to the pre" cise constructionsshown.

\Vhat I claim is: 1. A machine for gauging rolls comprising a rotary disk adapted to receive rolls,

a taper gauging device, disposed. in the path of a roll in said rotary disk, :1 second rotary' rolls from said first mentioned disk, said taper gauging device being in an electric circuit adaptedto be closed by an oli taper roll and a tripping device actuated by said electric circuit to trip a pawl carrying a roll that is oil" taper.

2. A machine for gauging rolls comprising a carrier adapted to receive rolls, a taper gauging device, disposed in the path of a roll in said carrier, a second carrier provided with pawls adapted to receive rolls from said first mentioned carrier, said taper gauging device being in an electric circuit adapted to'be closed by an oil-taper roll and 20 rolls from said path of a roll a tripping device actuated by said electric circuit to trip a pawl carrying a roll that is oil? taper.

3. A machine for gauging rolls compris ing a carrier adapted to receive rolls, a taper gauging device disposed in the path of a roll in said carrier, a second carrier adapted to receive a gauged roll from said first mentioned carrier, said taper auging device heing in an electric circuit a apted to be closed by the action of an ofi-taper roll on said gauging device and means set by said electric circuit for ejecting an off-taper roll from said second carrier.

4. A machine for gauging rolls comprising a rotary disk adapted to receive rolls, .a taper gauging device disposed in the path of a roll in saidrotary disk, a second rotary disk provided with pawls adapted to receive first mentioned disk, said taper gauging device being in an electric circuit adapted to be closed by an off-taper roll and a tripping device actuated by said electric circuit to trip the pawl of'said sec- 0nd disk carrying said otl' taper roll.

5. A machine for gauging rolls compris ing a carrier adapted to receive rolls, a taper gauging device, a roundness gauging device, said gauging devices being disposed in the in said carrier, a second carrier adapted to receive rolls from said first mentioned carrier said taper gauging device and said roundness gauging device being in an electric circuit adapted to be closed by an oil-taper roll and. by an out of round roll, a tripping device .actuated by said electric circuit to trip a pawl carrying a roll that is defective, and a hinged gate adapted to be swung in one direction to receive a roll that 18 out of round and to be swung in the opposite direction to receive a roll that is off taper, said taper gauging device being in ted to swing said an electric circuit ada F gate into off taper position and said roundness gauging device beinglin an electric circuit adapted to swing said gate into out of round position.

6. A machine for gauging rolls compris. r inga carrier adapted to receive rolls, a taper gauging device, a roundness 'gaugin device, said gauging devices being dispose in the path of a roll in. said carrier, a second carrier provided with pavls adapted to receive rolls from said first mentioned carrier said taper gauging device and said roundness gaugin device being in an electric circuit adapte to be closed by an oil-taper roll and by an out of round roll means actuated by a said electcic circuit for ejecting a roll that )0 .is def ctive, and a hinged gate adapted to be swung in one direction to receive a roll that is out-of-round and to be suvung in the opposite direction to receive a'roll that is is off taper. said taper gauging device being in an electric circuit adapted to swing gate .mentioned carrier,

device being in an electric circuit adapted to into ofl taper position and said roundness gauging device being in an electric circuit adapted to swing said gate into out-ofround position. 7. In a machine of the kind described, a taper gauging mechanism comprising a support, a lever having a forked end straddling said support, a spring secured to said sup port and said lever whereby the ends of the lever project beyond the face of the su ort to engage a roll and the rests against said support, whereby a roll engagingthe forks of said lever forces itaway from said support side if the roll is oil taper.

8. A machine for gauging rolls comprising a carrier adapted to receive rolls, a roundness gauging device, disposed in the path of a roll in said carrier a second carrier adapted to receive rolls from said first carrier said roundness gaugin device bein in an electric circuit adapted to be closed and means actuated by an out-of-round roll by said electric circuit for ejecting a roll that is out-of-roui'id from said second carrier.

9. A machine for gauging rolls comprising a rotary disk adapted to receive rolls, a roundness gauging device disposed in the path of a roll in said rotary disk, a second rotary disk provided with pawls adapted to receive rolls from said first mentioned disk, said roundness gauging device being in an electric circuit adapted to be closed by an out-of-round roll and a tripping vice actuated by said electric circuit to trip the pawl of said second disk carrying said out-ofround roll.

10. A machine for gauging rolls comprising a carrier adapted to receive rolls, a roundness gauging ,device disposed in the path of a roll in said rotary disk, a second carrier provided with pawls adapted to receive rolls from said ness gauging device being in an electric cirroll and a tripping device actuated by said electric circuit to trip a pawl carrying a roll that is out-ofround. u

11. A machine for gauging rolls, comprising a carrier adapted to receive rolls, a roundness gauging device disposed in the path of a foil in said carrier, a second carrier adapted to receive a roll from said first said roundness gauging be closed by the action of an out-of-round -roll on said gauging device and means set bysaid electric circuit of-round roll from said second carrier.

12. A device, for gauging rolls for round ness comprising a carrier for rolls to be gauged, a hollow plunger mounted adjacent to said carrier and movable toward and away from said disk, resilient means for pressing said plunger toward said carrier,

for ejecting an outcrotch of the fork andswings it to one I first carrier said roundsupporting the ing a taper gauging device, a roundness said plunger having a portion that contacts with a roll in said carrier, means for rotating said roll, a friction element in said plunger, an arm projecting from said friction element and means for locking said arm against movement when a roll engages the end of said hollow plunger, thus permitting movement of the plunger on the friction'element and for releasing said arm to permit movement of the hollow plunger and friction element as a unit.

13. A machine for gauging rolls comprising a taper gauging device, a roundness gauging device means for carrying a roll past said taper gauging device and said ronndness gauging device and means set by said gauging devices for sorting the rolls after they have been carried past said gauging devices.

14.- A machine for gauging rolls comprisgauging device, means for carrying a roll past said taper gauging device and said roundness gauging device and means set by said gauging devices for sorting the rolls after they have been carried past said gauging devices into three, lots, namely, rolls that are correct as to taper and roundness, rolls that are out-of-round, and rolls that are off taper or both out-of-round and off-taper.

15. A machine for gauging rolls compris ing a taper gauging device, a roundness gauging device, means for carrying a roll past said taper gauging device and roundness gauging device and means set by said gauging devices for sorting the rolls after they have been carried past said gauging devices.

16. A machine for gauging rolls comprising a taper gauging device, a roundness gauging device, means for carryin a roll past said taper gauging device ant roundness gauging device and means set by said gauging devices for sorting the rolls after they have been carried past said gauging devices, said means comprising a trip device actuated by said gauging devices flor ejecting defective rolls and a hinged sorting gate operatively connected with said gauging devices to be swung in one direction to receive ofi' taper rolls and to be swung in the opposite direction to receive out-of-round rolls. 17. A machine of the kind described comprising a vertically disposed rotary disk adapted to receive rolls to be gauged, a taper gauging device disposed adjacent to said disk in position to be engaged by a roll therein, a ronndness gauging device disposed adjacent to said disk in position to be engaged by a roll after it has passed the taper gauging device, a horizontally disposed rotary disk adapted to receive a rolb from s id vertical disk after it has passed the gauging devices, a chute for defective rolls, means controlled by said taper gauging mechanism and said roundness auging mechanism for sorting rolls in saic chute, and means controlled by said gauging mechanism for ejecting rolls into said chute.

18. A machine of the kind described comprising a vertically disposed rotary disk adapted to receive rolls to be gauged, a taper gauging device disposed adjacent to said disk in position to be engaged by a roll therein, a roundness gauging device disposed and adjacent to said disk in position to be engaged by a roll after it has passed the taper gauging device, a horizontally disposed rotary disk adapted to receive a roll from said vertical disk after it has passed the gauging devices, a chute for defective rolls, means controlled by said taper gauging mechanism and said roundness gauging mechanism for sorting rolls in said chute, and means controlled by. said gauging mechanism for ejecting rolls into said chute and means for ejecting perfect rolls from said horizontal disk. 4

19. A gauging machine comprising a vertically disposed rotary disk provided with pockets adapted to receive rolls to be gauged, gauging devices disposed adjacent to said dlsk in position to be engaged by a roll therein, a horizontally disposed rotary disk having a portion extending under said vertically disposed disk to receive a roll therefrom and means for sorting rolls of correct taper and ronndness from the others.

20. A machine of the kind described comprising a carrier for receiving rolls to be gauged, a taper gauging device disposed adjacent to said carrier in position to be engaged by a roll therein, a roundness gang ing device disposed adjacent to said carrier in position-to be engaged by a roll after it has passed the taper gauging device, a second'carrier adapted to receive a roll from said first carrier after it has passed the gauging devices, a chute for off taper and out-of-round means controlled by said'taper gauging device and said ronndness gauging device for sorting rolls in said chute, and means controlled by said gauging devices for ejecting rolls into said chute.

21. A machine of the kind described comprising a carrier for receiving rolls to be gauged, a taper gauging device disposed adjacent to said carrier in position to be engaged by a roll therein, a roundness gauging device disposed adjacent to said carrier in position to be engaged by a roll after it has passed the taper gauging device, a second carrier adapted to receive a roll from said first carrier after it has passed the gauging devices, a chute for oii' taper and cutofronnd rolls, n'ieans controllcd by said taper gauging device and said ronndness gauging device for sorting rolls in said chute, and means controlled by said gauging devices for ejecting rolls into said chute and means for 

